安徽农业科学2017，Vol.45Issue(17)：39-41,44,4.
浑善达克沙地不同龄级沙柳灌丛土壤有机碳研究
Study on Soil Organic Carbon of Different Age Classes of Salix psammophila Shrubs in the Hunshandake Sand Land
摘要
Abstract
[Objective] To study distribution regularities of soil organic carbon of different age classes of Salix psammophila shrubs in the Hunshandake Sand Land,in order to provide a scientific basis for further study on carbon budget in the process of community succession and selection of vegetation types in the process of ecological restoration.[Method] The soil pH,bulk density,organic carbon and carbon density of the different ages (2,4,6,8 a) of artificial Salixpsammophila shrubs in Hunshandake Sand Land were studied.[Result]The results showed that the soil pH of Salix psammophila shrubs was 7.34-7.60.There was no significant correlation between soil pH and soil organic carbon content.In the vertical distribution of vegetation in the same age,the bulk density of the surface layer was lower than that of the bottom layer,and it was negatively correlated with the change of soil organic carbon.The contents of soil organic carbon in different ages of Salix psammophila shrubs were between 0.44 and 1.10 g/kg.Both of the different ages of Salix psammophila shrubs and the soil organic carbon content in different soil layers with the increase of woods' ages showed a trend from decline to rise,there was no obvious change of soil organic carbon in different soil layers of Salix psammophila shrubs.The soil carbon density in the soil surface decreased first and then increased with the increase of age.The soil carbon density of 8 a Salix psammophila shrubs was 9.59 kg/m2,and the soil carbon density increased with the increase of soil level.[Conclusion] The results display that Salix psammophila shrubs play an important role in vegetation restoration and soil carbon pool.关键词
浑善达克沙地/沙柳灌丛/pH/土壤有机碳/碳密度Key words
Hunshandake Sand Land/Salix psammophila shrubs/pH/Soil organic carbon/Carbon density分类
农业科技引用本文复制引用
昭日格,乌仁陶格斯,苏楞高娃..浑善达克沙地不同龄级沙柳灌丛土壤有机碳研究[J].安徽农业科学,2017,45(17):39-41,44,4.基金项目
国家民族委员会项目(14HTZ012) （14HTZ012）
内蒙古自治区高等学校科学研究重点项目(NJZZ229) （NJZZ229）
2015年内蒙古自治区人才基金开发基金项目. （）
